NEC N8406-022 Port mirroring, Uplink Failure Detection configuration, Port-basedport mirroring

Port mirroring

Port Mirroring is used to configure, enable, and disable the monitored port. When enabled, network packets being sent and/or received on a target port are duplicated and sent to a monitor port. By attaching a network analyzer to the monitor port, you can collect detailed information about your network performance and usage. Port mirroring is disabled by default.

NOTE: See the “Troubleshooting tools” appendix in the N8406-022 1Gb Intelligent L2 Switch Application Guide for information on how to use port mirroring.

The following table describes the Port Mirroring Configuration commands.

Table 104 Port Mirroring Configuration commands

Command		Description
[no]	port-mirroring	Enables or disables port mirroring.
enable		Command mode: Global configuration
show	port-mirroring	Displays current settings of the mirrored and monitoring ports.
		Command mode: All except User EXEC

Port-based port mirroring

The following table describes the port-based Port Mirroring Configuration commands.

Table 105 Port Mirroring Configuration commands

Command	Description
port-mirroring monitor-port <port	Adds the port to be mirrored. This command also allows
number> mirroring-port<port number>	you to enter the direction of the traffic. It is necessary to
{inoutboth}	specify the direction because:
	• If the source port of the frame matches the mirrored
	port and the mirrored direction is ingress or both
	(ingress and egress), the frame is sent to the mirrored
	port.
	• If the destination port of the frame matches the
	mirrored port and the mirrored direction is egress or
	both, the frame is sent to the monitoring port.
	Command mode: Global configuration
no port-mirroring monitor-port <port	Removes the mirrored port.
number> mirroring-port<port number>	Command mode: Global configuration
no port-mirroring monitor-port <port	Deletes this monitor port.
number>	Command mode: Global configuration
show port-mirroring	Displays the current settings of the monitoring port.
	Command mode: All except User EXEC

Uplink Failure Detection configuration

Uplink Failure Detection (UFD) supports network fault tolerance in network adapter teams. Use these commands to configure a Failure Detection Pair of one Links to Monitor (LtM) group and one Links to Disable (LtD) group. When UFD is enabled and a Failure Detection Pair is configured, the switch automatically disables ports in the LtD if it detects a failure in the LtM. The failure conditions which are monitored in the LtM group include port link

state moving to down, or port state moving to Blocking if Spanning Tree Protocol is enabled.

The following table describes the Uplink Failure Detection (UFD) Configuration commands.

Table 106 Uplink Failure Detection Configuration commands

Command	Description
ufd enable	Globally turns Uplink Failure Detection ON.
	Command mode: Global configuration
no ufd enable	Globally turns Uplink Failure Detection OFF.
	Command mode: Global configuration
show ufd	Displays the current Uplink Failure Detection configuration parameters.
	Command mode: All

Configuration Commands 89